shook down. probably because my dumb [ bleep ] brother just got hit with a seven-inch shank. that book that they just took, where i hid the cell phone. i gave that cell phone to him. if they write me up for that it's [ bleep ]. >> this book was taken because he once hid a cell phone in it. he would walk around with the book all day. nobody would ever know. >> at indiana state inmates aren't the only ones shaken down. to ensure the facility's safety, correctional staff police themselves through surprise inspections for contraband or other policy violations. though other prisons conduct such inspections, isp was the first to allow our cameras to cover one. >> this morning we conducted a surprise staff shake down. the reason is this is our first line of defense in preventing trafficking. what happens is a staff member comes in and goes through the regular shakedown up front. and then they proceed back here where they'll give their i.d., we'll sign them in. they sit in a chair. there the dog will shake them down.